The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 27, 2025
Filed:
Jun. 30, 2022
China National Silk Museum, Zhejiang, CN;
Zhejiang Sci-tech University, Zhejiang, CN;
Yang Zhou, Zhejiang, CN;
Yong Liu, Zhejiang, CN;
Zhiqin Peng, Zhejiang, CN;
Bing Wang, Zhejiang, CN;
Hailing Zheng, Zhejiang, CN;
Hailiang Yang, Zhejiang, CN;
Liling Jia, Zhejiang, CN;
Hao Li, Zhejiang, CN;
Dan Yang, Zhejiang, CN;
Rui Jia, Zhejiang, CN;
China National Silk Museum, Zhejiang, CN;
Zhejiang Sci-Tech University, Zhejiang, CN;
Abstract
A purification method for detection of a strontium isotope in a silk cultural relic. The method includes: (1) enrichment of the strontium isotope: after cleaning the silk cultural relic, adding the silk cultural relic to a digestion agent for microwave digestion, and conducting evaporation drying; and adding a dried product to a nitric acid solution for centrifugal separation, and extracting a supernatant; and (2) purification of the strontium isotope: first, mixing 4',4″(5″)-di-tert-butyldicyclohexano-18-crown-6 and a defoamer and adsorbed to a purified resin separation column, and pre-cleaning the purified resin separation column with a nitric acid solution; next, injecting the supernatant in step (1) into the purified resin separation column with a nitric acid solution as a carrier solution; and then, injecting anSr solution and an elution solution into the purified resin separation column in sequence to obtain a separated and purified strontium solution.